Browsing by Title Artículos de revistas
Now showing items 1798-1817 of 2801
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(1991)Immunoaffinity chromatography involves binding of an antigen or antibody to a solid matrix, usually agarose, frequently using the cyanogen bromide method. These methods are laborious, rather expensive, and their use has ...
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(ELSEVIER SCI LTD, 2008-07)The objective of this research was to study the kinetics of oil absorption and distribution in the structure of potato slices during frying, considering the effects of three oil temperatures and a blanching pre-treatment. ...
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(1993)The concentration of the triterpene oleanolic acid in leaves of Baccharis linearis varies at different stages of plant growth from 1.9 to 3.0 g kg-1 fr. wt. Larvae of Heliothis zea, starved with 1.4 mg of oleanolic acid ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2009-09-02)Selective oxidation of galacturonic residues of oligo and polyuronic acids by Cr-VI affords CO2/HCO2H, oxidized uronic acid, and Cr-III as final redox products. Kinetic studies show that the redox reaction proceeds through ...
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(MDPI, 2021)Gold nanoparticles (AuNPs) have been shown to be outstanding tools for drug delivery and biomedical applications, mainly owing to their colloidal stability, surface chemistry, and photothermal properties. The biocompatibility ...
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(Institution of Chemical Engineers, 2017)Olive leaves extract (OLE) was microencapsulated with inulin (OLE-IN) by spray-drying using a central composite design. Oleuropein encapsulation efficiency and recovery values were over 87% in the OLE-IN microparticles ...
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(2014)We show that the Gel’fand character χG of a finite group G (i.e. the sum of all irreducible complex characters of G ) may be realized as a “ twisted trace” g 7→ T r(ρg ◦ T ) for a suitable involutive linear automorphism ...
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(Informa Healthcare, 1989)The characteristics of the visible luminescence that follows the lipid peroxidative process were investigated either in the autoxidation of rat brain homogenates or in the azo-bis-arnidinopropane initiated lipid peroxidation ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004-07)Leukoaminochrome o-semiquinone radical is generated during one-electron reduction of dopamine oxidation product aminochrome when DT-diaphorase is inhibited. Incubation of 100 muM aminochrome with 100 muM dicoumarol, an ...
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(Royal Society of Chemistry, 2005)The new hybrid organic-inorganic copper oxovanadium phosphates of composition Cu4(bipy)4V4O11(PO 4)2·nH2O (n ∼ 5) (1) and Cu 2(bipy)2V2P2O12 (2) (bipy = 2, 2′-bipyridine) adopting the triclinic symmetry were obtained by ...
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(Sociedade Brasileira de Química, 2010)Substituted chromenos, dihydropyridines and pyridines have been important in the syntheses of compounds having interesting pharmacological properties. Therefore, we found of interest to synthesize chromenopyridines and ...
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On the reduction of 4-oxo-4H-benzopyran-3-carbaldehydes: Global and local electrophilicity patternse (SOCIEDAD CHILENA DE QUIMICA, 2004-03)The theoretical global and local electrophilicity patterns of substituted and chelated 4-oxo-4H-benzopyran-3-carbaldehydes (formylchromones) have been evaluated using the electrophilicity index proposed by Parr et al [J. ...
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(Elsevier Science Publ. B.V., 1993)The clusters of M2[O2CCCo3(CO)9]4-n[O2CR]n, where M is Cr, n= O; where M is Mo, n = 0,1, R is CH3; where M is W, n=0; exhibit allowed transitions with absorvance maxima that correlate with the lowest ionization energy of ...
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(SOCIEDAD CHILENA DE QUIMICA, 2000-12)Time resolved near IR luminescence detection of singlet oxygen, O-2((1)Delta (g)), and steady-state photolysis experiments were performed to study in detail limitations and approaches involved when 9,10-dimethylanthracene ...
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(2012)The formation of paramagnetic species from oncocalyxone A in aprotic medium was confirmed by performing in situ electrochemical-electron spin resonance (E-ESR) experiments. The high delocalization of the radical generated ...
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(BioMed Central, 2014)The type VI secretion system (T6SS) is a virulence factor for many Gram-negative bacteria. Salmonella genus harbors five phylogenetically distinct T6SS loci encoded in Salmonella Pathogenicity Islands (SPIs) SPI-6, SPI-19, ...
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(Sociedad Chilena de Química, 1990)A partir de complejos amoniacales de Co(III) se sintetizaron compuestos que contienen los ligantes quirales L-aspartato y L-malato como segundo ligante. Los compuestos se identificaron por medio de análisis, mediciones de ...
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(Pergamon Press, 1985)The preparation of aminocomplexes of Co(III) containing D-ribose, L-sorbose or D-glucosamine as second ligand is described. Their spectral features and optical activity are reported. Formation in solution of complex ...
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(1975)Study of the visible absorption and circular dichroism spectra of mixed complexes formed by copper(II), an optically active amino acid anion and a phenanthroline or dipyridyl moiety, shows that although the absorption ...
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Optical activity of nickel(II) and copper(II) complexes with L-aminoacids in the UV spectral region (Elsevier Sequoia, 1972)Complexes of Cu(II) and Ni(II) with L-aminoacids have been prepared and their UV spectra and optical activity studied. The results are interpreted in terms of the conformation of the chelated rings. A molecular orbital ...
